The Interfit will work on your K-7, but the fittings on these can be quite tricky. Some fit well, others not so well.

I use manual at the synch speed because it's simple enough to set 1/160sec and f8 or so and the light can be seen clearly when we revieww the image. Exposure with studio flash is not much of a problem.

Also bear in mind that Interfit IR triggers go into sandby very quickly, so switch off and on again immediately before use.

Nobody can know something like that Mike.

Given that the pixel count of two sensors is the same, using the full number from an APS-C sensor is better image size wise than using a lesser number from a larger sensor. There are other factors, but it's not all one way.

Another thing that is an advantage of APS-C is that cameras and lenses can be more compact, or lenses could be more adventurous in specification.

The last time Pentax did a professional system was the LX and that didn't survive the AF revolution.

Of course there was a time (the Spotmatic era) when the distinction between professional and amateur cameras wasn't quite the same. A professional camera was one that professionals used, and the main players were Nikon and Pentax. Pentax had some very unique professional products, such as the Quartz lenses and the Nocta IR surveillance system.

At that point professionals using Canon were probably in the minority.

It can all change agin, given enough time. The photojournalists might all change to the Q as the quality will be absolutely more than enough for newspapers and web news. Just think of the reduction in weight to carry.

I think we may have a team of comedy writers in the making here, all this from mention of Sylco thread....

You said it had a cotton reel stuck on the front....Sylco thread was a leading manufacturer of cotton. The wooden bobbins were very useful for making things, the later plastic ones less so.

It was an obscure play on words....

The vibration from these old planes is phenomenal. Even the two engined Mosquito (before it crashed) shook the ground as it growled its way across Southport a few years ago.

Is this a Sylco thread?

Jessops have had the Q for a while and from 1st November I think everyone will have it.

It's always dangerous ground to claim to represent the views of a large number of people who haven't been asked....I'm sure Pentax get lots of letter seen as "fan letters" from interested groups, as will other manufacturers.

If a market opened up for a Pentax full frame DSLR I'm sure there would be one on the drawing board ready to go. After all, we know there was one in existence that never made it to market and the 645D was also a reality long before someone pushed the "Go" button.

It all depends on your point of view, I'd rather have the item I wanted than mess about and maybe not get it. Life's too short to spend too much energy on an eBay auction. I try very hard to just put in what I want to pay and then walk away and forget it.

If I win, great, if I don't then I continue looking for the item.